Also, I am now quite interested in the FHD HDR display. 500 nits, claimed anti-glare (implicitly 8 bit and at least ~100% sRGB). If it's also an IGZO low power display with no PWM, it could be just about perfect, IMO.
That being said, since the GPU is the smallest of the Turing lineup, would Lenovo be brave enough to only use x8 PCIe to link it? This would allow for at least one NVMe slot and TB3 to be directly attached to the CPU. The other NVMe slot, ethernet, WiFi, etc could all be hooked to the Southbridge/PCH without any real penalty at that point.
As it stands, the current X1E (gen 1) links up the GPU using all 16 of the CPU's available PCIe lanes. For gaming purposes, it's quite a waste. I am aware there are tasks which benefit from a wider CPU-GPU PCIe bus, but I find it unlikely that users of the X1E would be the target demographic for this.